Academic Integrity: tutoring, explanations, and feedback — we don’t complete graded work or submit on a student’s behalf.

(a) When a dielectric is inserted between the plates of a capacitor that is conn

ID: 2238387 • Letter: #

Question

(a) When a dielectric is inserted between the plates of a capacitor that is connected to a battery, what happens (increase, decrease, stay the same) to each of the following: Capacitance, charge on the plates, potential difference, potential energy, electric field, energy density.


(b) Now we insert a dielectric between the charged plates of a capacitor that is not connected to a battery. What now happens (increase, decrease, stay the same) to each of the following: Capacitance, charge on the plates, potential difference, potential energy,, electric field, energy density.


OPTIONAL

(c) Illustrate your answers with a diagram for before and after in each of the two cases. Include in your sketch the free charge (the charge that is on the plates,) the induced charge in the dielectric, the field due to each of these charges and the net field.

Explanation / Answer

http://www.physics.sjsu.edu/becker/physics51/capacitors.htm